Granted Patent
Utility
US 6,437,722 · App. 09/698,686
AD converter circuit
Inventor:
Hirokazu Yoshizawa
Patented Case
View Patent ↗
Granted: Aug 20, 2002
Filed: Oct 27, 2000
Inventor
Hirokazu Yoshizawa
Assignee (at issue)
SEIKO INSTRUMENTS INC.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.